{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73071",
    "entityType": "User",
    "nonce": "0x4000d2f3f3f28bc21ff349d582d8d08f5117e90caeb5009d6440cfc241373b05",
    "signature": "0xf9c7735859978b8a248a5e51f1da5f5766d7975c3851a9d5f4ce16c9bbe17ddc1be3d7eca52bc739715bdbd1edebd1cc37e49dfd8761de207c665a252d811a321b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}